refactor(editor): unify directories naming (#11516)

**Directory Structure Changes**

- Renamed multiple block-related directories by removing the "block-" prefix:
  - `block-attachment` → `attachment`
  - `block-bookmark` → `bookmark`
  - `block-callout` → `callout`
  - `block-code` → `code`
  - `block-data-view` → `data-view`
  - `block-database` → `database`
  - `block-divider` → `divider`
  - `block-edgeless-text` → `edgeless-text`
  - `block-embed` → `embed`

blocksuite/affine/widgets/toolbar/src/effects.ts

@@ -0,0 +1,11 @@
+import { AFFINE_TOOLBAR_WIDGET, AffineToolbarWidget } from './toolbar';
+
+export function effects() {
+  customElements.define(AFFINE_TOOLBAR_WIDGET, AffineToolbarWidget);
+}
+
+declare global {
+  interface HTMLElementTagNameMap {
+    [AFFINE_TOOLBAR_WIDGET]: AffineToolbarWidget;
+  }
+}